Genealogy Clan Callaghan
Mary T Keane O'Callaghan discovered that Clan Callaghan descends from King Callaghan of Cashel, Co Tipperary in the province of Munster. Also her research proves that the Duke of Devonshire who owns the mansion of Chatsworth in England is proud of his O'Callaghan ancestry. He traces his ancestry from The Honourable Louisa O'Callaghan who married a Duke of Devonshire.
Mary T Keane and her son Liam were invited to afternoon tea in Lismore Castle by Lord Burlington, heir to The Dukedom of Devonshire.
Mary decided a number of years ago to write a book about her ancestors Clan Callaghan and unwittingly was led into further research on the Clan. Her subsequent book resulted in the publication of The Royal Blood of Erin, The Milesian Irish and Clan Callaghan, go to: marytkeane.com/store A copy of the book is now available in the World's largest library i.e. The Library of Congres, Washington D.C.